/* TNG Pair Presentation — museum register components (Tate / Whitney / LACMA tone) */

/* Pair atmosphere — collision palette as CSS variables */
body.pair-page {
  --pair-atmo-left: var(--pair-bg);
  --pair-atmo-right: var(--pair-bg);
  --pair-atmo-accent: var(--pair-amber);
  --pair-atmo-deep: var(--pair-bg);
  --pair-atmo-glow: color-mix(in srgb, var(--pair-atmo-accent) 12%, transparent);
}

body.pair-page[data-pair="audacity"] {
  --pair-atmo-left: #0d0a08;
  --pair-atmo-right: #1a1410;
}
body.pair-page[data-pair="sagacity"] {
  --pair-atmo-left: #0f1218;
  --pair-atmo-right: #1a2030;
}
body.pair-page[data-pair="perspicacity"] {
  --pair-atmo-left: #1a2838;
  --pair-atmo-right: #2a3a4a;
}
body.pair-page[data-pair="tenacity"] {
  --pair-atmo-left: #1a1810;
  --pair-atmo-right: #2a2418;
}
body.pair-page[data-pair="ferocity"] {
  --pair-atmo-left: #080810;
  --pair-atmo-right: #12101a;
}
body.pair-page[data-pair="authenticity"] {
  --pair-atmo-left: #0a0c10;
  --pair-atmo-right: #141820;
}
body.pair-page[data-pair="eccentricity"] {
  --pair-atmo-left: #101820;
  --pair-atmo-right: #1a2830;
}
body.pair-page[data-pair="veracity"] {
  --pair-atmo-left: #1a1612;
  --pair-atmo-right: #2a2218;
}

/* ── Limited Drop Banner ── */
.pair-drop-banner {
  position: fixed;
  top: clamp(4.5rem, 10vh, 6rem);
  right: clamp(1rem, 3vw, 2.5rem);
  z-index: 6500;
  max-width: 14rem;
  padding: 0.65rem 0.85rem;
  border-left: 1px solid color-mix(in srgb, var(--pair-atmo-accent) 45%, transparent);
  background: color-mix(in srgb, var(--pair-atmo-deep) 72%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  pointer-events: none;
  opacity: 0;
  transform: translateY(-0.35rem);
  transition: opacity 1.2s var(--pair-ease), transform 1.2s var(--pair-ease);
}
body.pair-museum-scroll .pair-drop-banner,
body.pair-dialogue .pair-drop-banner {
  opacity: 1;
  transform: translateY(0);
}
.pair-drop-banner__line {
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  line-height: 1.5;
  color: var(--pair-text);
}
.pair-drop-banner__whisper {
  margin-top: 0.35rem;
  font-size: 0.52rem;
  font-weight: 400;
  font-style: italic;
  letter-spacing: 0.06em;
  line-height: 1.45;
  color: var(--pair-muted);
}

/* ── Edition strip ── */
.pair-edition-strip {
  display: flex;
  justify-content: center;
  padding: 0.5rem clamp(1.25rem, 4vw, 2.5rem) 0;
  position: relative;
  z-index: 1;
}
.pair-edition-strip__label {
  font-size: 0.54rem;
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--pair-atmo-accent) 70%, var(--pair-muted));
}

/* ── Signature Item badge (Tier 0) ── */
.pair-signature-badge {
  display: inline-block;
  margin-bottom: 0.35rem;
  font-size: 0.5rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--pair-atmo-accent);
}
.pair-signature-mark {
  margin: 0.2rem 0 0;
  font-size: 0.62rem;
  font-style: italic;
  letter-spacing: 0.04em;
  color: var(--pair-muted);
  opacity: 0.85;
}

/* ── Lane Badge ── */
.pair-lane-badges {
  display: flex;
  gap: clamp(1.5rem, 4vw, 3rem);
  justify-content: center;
  align-items: baseline;
  padding: 0.75rem clamp(1.25rem, 4vw, 2.5rem) 1.25rem;
  border-bottom: 1px solid color-mix(in srgb, var(--pair-text) 6%, transparent);
}
.pair-lane-badge {
  font-family: var(--pair-display-font);
  font-size: clamp(0.62rem, 1.2vw, 0.72rem);
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--pair-muted);
  position: relative;
}
.pair-lane-badge::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 1.25rem;
  height: 1px;
  background: var(--pair-atmo-accent);
  opacity: 0.55;
}

/* ── Monument Frame ── */
.pair-monument-frame {
  margin: 0;
  width: 100%;
}
.pair-monument-frame__mat {
  padding: clamp(0.75rem, 2vw, 1.25rem);
  background: color-mix(in srgb, var(--pair-atmo-left) 40%, var(--pair-atmo-deep));
  border: 1px solid color-mix(in srgb, var(--pair-text) 8%, transparent);
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--pair-text) 3%, transparent),
    0 1.5rem 3rem -1.5rem color-mix(in srgb, var(--pair-atmo-deep) 80%, transparent);
}
.pair-monument-frame__mat img,
.pair-monument-frame__mat .tng-picture {
  width: 100%;
}
.pair-monument-frame__caption {
  display: grid;
  gap: 0.25rem;
  padding: 0.85rem clamp(0.75rem, 2vw, 1.25rem) 0;
  max-width: 42rem;
}
.pair-monument-frame__title {
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  line-height: 1.55;
  color: var(--pair-muted);
}
.pair-monument-frame__credit {
  font-size: 0.52rem;
  font-style: italic;
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--pair-muted) 75%, transparent);
}

/* Monument portrait integration */
.pair-monument-portrait .pair-monument-frame__mat {
  padding: 0;
  border: none;
  box-shadow: none;
  background: transparent;
}

/* Audacity — desktop collision hero gap fix */
@media (min-width: 900px) {
  body[data-pair="audacity"] .exhibition-room {
    padding-bottom: clamp(0.5rem, 1vw, 0.85rem);
    margin-bottom: 0;
  }
  body[data-pair="audacity"] #scene-collision-hero {
    margin-top: 0;
    padding-top: 0;
  }
  body[data-pair="audacity"] .pair-collision-hero-wrap {
    margin-top: 0;
  }
  body[data-pair="audacity"] .pair-monument-portrait {
    height: clamp(20vh, 28vw, 26vh);
  }
}

/* ── Craft Reveal ── */
.pair-media-reveal,
.pair-craft-reveal {
  --craft-reveal-y: 1.25rem;
  opacity: 0;
  transform: translateY(var(--craft-reveal-y));
  transition:
    opacity 1.1s var(--pair-ease-soft),
    transform 1.1s var(--pair-ease-soft),
    filter 1.4s var(--pair-ease-soft);
  filter: saturate(0.88) contrast(1.02);
  will-change: opacity, transform;
}
.pair-media-reveal.is-revealed,
.pair-craft-reveal.is-revealed {
  opacity: 1;
  transform: translateY(0);
  filter: saturate(0.92) contrast(1.05);
}
.pair-craft-reveal--detail.is-revealed {
  filter: saturate(1) contrast(1.06);
}

@media (prefers-reduced-motion: reduce) {
  .pair-drop-banner {
    transition: none;
    opacity: 1;
    transform: none;
  }
  .pair-media-reveal,
  .pair-craft-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}